Tom Lane wrote:
> I'm not sure whether allowing that would be good or bad.  I see no
> obvious killer reason why it'd be bad, but it seems like the kind of
> thing we might regret someday.  pg_global is in some sense an
> implementation artifact, so allowing users to depend on it might be
> bad in the long run.

Agreed, it feels scary to allow it.

-- 
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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